[  501.501836] bond0: (slave eth0): making interface the new active one
[  501.501939] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.686995] bond0: (slave eth0): Releasing backup interface
[  505.780752] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.972531] bond0: (slave eth0): Releasing backup interface
[  510.009345] bond0 (unregistering): Released all slaves